18 Questions
What is the main purpose of a wireless access point?
To connect wireless devices to a wired network
Which type of modem is designed for a continuous connection?
DSL modem
What is the main purpose of a router in a cable/DSL connection?
To act as a hardware firewall
What is the role of a PBX in a telephone network?
To extend the public telephone network into a business
What is the main function of DOCSIS in cable modem technology?
To include built-in support for security protocols
What is the primary purpose of a modem?
To convert analog signals to digital signals and vice versa
What is the purpose of a NIC in a computer network?
To connect a computer to the network physically
Why have hubs become obsolete in newer networks?
Because they create a single collision domain leading to network congestion
What is a concentrator's main function in a network?
To act as endpoints for specific protocols and manage traffic flows
Why do wireless devices pose additional security concerns in a network?
Because radio waves or infrared allow anyone within range to access data
What aspect makes NICs vulnerable to security threats such as spoofing?
Unique Media Access Control addresses (MAC addresses)
How do concentrators differ from general-purpose servers in network management?
They act as endpoints for specific protocols and offer specialized services
What is the primary security concern with the devices described in the text?
They can be compromised from the outside and used by phone hackers to make phone calls at the business's expense
What type of security device is described in the text for maintaining network infrastructure security?
All of the above
What is the key difference between Network Access Protection (NAP) and Network Admission Control (NAC) as described in the text?
NAP measures the health of a host when it connects to the network, while NAC enforces policies chosen by the network administrator
What is the purpose of the network operations center (NOC) as described in the text?
To observe and interact with the network, using the self-reporting and self-healing nature of network devices to ensure efficient network operation
What type of connection is described in the text that poses a security risk?
A connection to an outside data network and the Internet
What type of security device is specifically mentioned in the text as being needed for the connections to outside data networks and the Internet?
Firewall
Test your knowledge on wireless access points, network cards, and modems. Learn about the functionalities and mechanisms of these devices in connecting wireless devices to a wired network.
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